I have an existing child support order entered in MA in 2008. In 2009 it was modified to make him pay monthly instead of weekly. I have since moved to NY in 2009 and the burden of transporting the child for visitation and the expense is on me. If I were to ask for an upward modification of the order due to severe change in circumstances ( I understand it need not be granted), which state has jurisdiction over the matter? The child is nearly 11 and moved with me to NY in Oct of 2009. Can I approach NY for a modification of the order or does MA still get to retain the order as well as further modifications? He still lives in MA.